Knob-lock for doors.



F. J. SCHALOW.

KNOB LOCK FO R DOORS.

APPLICATION FILED JU NE I4. l9l6-.

1 $14,596. I Patented Feb. 6, 1917.

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FRANK J. SCHALOW, OF EVERGREEN, NEW YORK.

KNOB-LOCK FOR DOORS.

Specification of Letters Patent.

Patented Feb. 6, 1917.

Application filed June 14, 1916. Serial No. 103,604.

To all whom it may concern:

Be it known that I, FRANK J. SCHALOW, a citizen of the United States, and residing at Evergreen, Long Island, in the county of Queens and State of New York, have in vented certain new and useful Improvements in Knob-Locks for Doors, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to what are known as knob locks for doors, and the object thereof is to provide an improved device of this class which is simple in construction and operation and comparatively inexpensive, and which will be strong and durable and not liable to easily get out of order or need repair and which may be adjusted to doors of various thicknesses.

The invention is fully disclosed in the following specification, of which the accom panying drawing forms a part, in which the separate parts of my improvements are designated by suitable reference characters in each of the views, and in which Figure 1 is a sectional view of a partof a door provided with my improved lock device, the lock casing being shown in full lines and the knob and spindle construction in section; Fig. 2 a view looking in the direction of the arrow 2 of Fig. 1 and showing parts of the construction broken away and also showing parts of the construction in a different position; Fig. 3 a section on the line 33 of Fig. 1 and showing parts broken away; and, Fig. 4 a view looking in the direction of the arrow 4: of Fig. 1 with a part of the construction removed.

In the drawing forming part of this specification, I have shown at a a part of a door and, in the practice of my invention, I provide two door plates 6 and 0 adapted to be secured to the opposite sides of the door and the plate 0 is provided with a large central a erture c which is rectanvular inform, and said plate is also provided with a collar 0 and in connection with the plate 0 I employ a knob 01 which is hollow in form and provided with a tubular neck (Z which is closed at its inner end as shown at d and the neck d is inserted into the collar 0 of the plate 0 and secured therein by screws 6,

and mounted in the tubular neck (Z? of the knob d is a clutch plug f provided at its inner end with a clutch member f which is angular in cross section and adapted to enter the aperture 0 in the plate 0, and mounted in the outer end of the tubular neck (Z2 of the knob d is a spiral spring g which normally serves to force the clutch plug f inwardly.

The knob cl is the inner knob of my improved knob lock, or the knob on the inner side of the door, and the spindle h is angular in cross section and passes transversely through the door and through the aperture 0 in the plate 0 and through the clutch plu f, and in the upper side of the inner end portion of said spindle are a plurality of recesses k and the neck d of the knob d is provided in the top side thereof with a longitudinal slot d, and passed inwardly and loosely through the slot d is a lock pin z' which is threaded through the clutch plug f and provided at itsinner end with a nose piece 71 adapted to enter either of the recesses 72. and mounted on the outer end of the pin 71 is a cam lock j adapted to operate in connection with a raised ear 7' on the neck d of the knob d at the inner end of the slot d*, and the cam lock j is provided with a milled head 1' The lock proper, or look casing k is shown in full lines only, and the spindle it passes therethrough in the usual manner and the plate I) on the outer side of the door is provided with a collar 6 which is preferably conical in form, and the outer knob m is provided with a neck m which is inserted into the collar 6 of the plate b,the collar 6 is recessed into the neck m of the knob m, and within said collar and countersunk in the plate I) is .a washer plate it through which are passed rods of which pass through the neck m of the knob on and into said knob. v

The knob m is divided transversely of its axis and mounted therein between the separate parts thereof which may be connected in any desired manner is a plate 0 into which the rods ar are screwed, and this construction securely binds the plate 6 and the knob m together. The plate 0 is provided in one side thereof with a radial slot 0 and mounted on the inner side of said plate is a radially movable dog 7) having a nose p which passes through said slot, and is connected with a lock plate 39 mounted on the outer side of the plate 0, and movable transversely thereof, and the inner end of the dog 79 is beveled as shown at 79*.

Beneath the lock plate p is a keeper 72 which is secured to the plate 0 and which forms a support and guide for the lock plate 29", and in the end of said lock plate opposite the slot 0 is a slot 27 through which is passed a pin 79, and in the upper corner portion of the opposite end of the lock plate 79 is another slot 99 through which is passed a screw 72 on which are mounted the tumblers 7", four of which are shown. The tumblers r are oblong in form and range longitudinally of the lock plate 12 and are provided with enlarged heads 7' in which are formed transverse apertures r which open outwardly through radial slots 7 and the corresponding end of the lock plate 9" is provided with a lug r which is adapted to enter the apertures 1, and the smaller ends of the tumblers r are provided with curved spring arms T which range longitudinally of the back edges of the said tumblers and operate in connection with a stop pin 7. The lock plate p is provided with a central transverse elliptical aperture 10 and the plate 0 is provided with a key pin 8, and the outer face or part of the knob m is provided with the usual key aperture m The plate 0 is provided on its inner face with a stud or support 3 to which is pivoted a finger t which operates in connection with the dog p and bears on the point of the beveled part 29 of said dog. The free end of the finger t is slightly curved and serves to center the corresponding end of the spindle h, and said end of the spindle is beveled as shown at h and the width of the finger t is the same as the transverse width of the dog g) and the corresponding dimensions of the nose of the spindle h are the same as the width of the finger t and dog p.

In the outer end portion of the spindle h and within the knob m is a transverse stop and safety pin M which is designed to hold the knob m and spindle it together before the plate 6 is secured to the door, or if at any time said plate should become detached from the door, and the plates 0 and b are secured to the door, in practice, by screws to or in any other way.

It will be understood that the construction of the lock 79, the details of which are not shown or described, and the operation of the spindle h in connection therewith, are the same as that of other devices of this class, my invention being limited to the spindle and knob construction, as herein shown and described and as hereinbefore set out.

The operation will be readily understood from the foregoing description when taken in connection with the accompanying drawing and the following statement thereof. In the position of the parts shown in Figs. 1, 3 and 4, the lock is shown in its open position and the cam lock y is shown in position to lock said parts against movement, and it will be seen that the clutch plug is withdrawn from the aperture 0 and the clutch member f thereof is out of alinement with the aperture 0 to the extent of a quarter of a revolution or forty-five degrees and from this position of the parts the clutch plug f may be moved into connection with the aperture 0 by rotating the cam lock so as to permit the spring 9 to move said plug, and the knob (Z may be rotated to the extent of forty-five degrees in order to bring the clutch head f of said plug in line with the aperture 0 in which position the door will be locked, and the spindle it will assume the position shown in Fig. 2. By inserting a key into the lock chamber in the knob m and in connection with the key pin 8 and rotating the same to operate the tumblers r to release the lug r from the apertures r therein in the movement of the lock plate 19 which movement will correspondingly move the dog 79 inwardly from the position shown in full lines in Fig. 2 to the position shown in dotted lines therein, in which operation the spindle it will be moved transversely of the door to operate the clutch plug f against the tension of the spring 9 and to disengage the clutch member f thereof from the aperture 0 in the plate 0, which operation permits the rotation of the knob m to rotate the spindle h and withdraw the bolt 70 of the lock casing 70 whereby the door may be opened, and the operation of withdrawing the key from the lock in the knob m will again move the parts of the lock mechanism into their locked position. It will also be understood that the cam lock j which is free to rotate on the pin 71 may be operated from the inner side of the door to produce the result above described, and in the operation of rotating the knob (Z the screws 6 operate in an annular groove (Z in the tubular neck (Z of the knob (Z, and the rotation of the knob m is facilitated by means of the washer n on the inner side of the neck m thereof. In the operation of locking the door when leaving an apartment, room' or the like, the cam lock j is rotated to permit the spring 9 to move the clutch plug f or the clutch head f thereof in connection with, or hearing on the plate 0, after which the door is closed and the knob m rotated so as to permit the spring 9 to force the clutch member i of the plug f into the rectangular aperture 0 in the plate 0 in which position the door is locked, or the knob m is held against rotation and said door may be opened from this position as hereinbefore described.

My invention is not limited to any specific form of key operated mechanism in the knob m for operating the spindle h and the construction shown in Figs. 1 and l merely indicates one form of key mechanism which will operate to produce the desired result, and changes in and modifications of the details of construction herein shown and described may be made, within the scope of the appended claims, without departing from the spirit of my invention or sacrificingits advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a lock mechanism of the class described, a door, plates mounted on the opposite sides thereof, knobs rotatably connected with said plates, a spindle movably mounted in said door and said knobs, means mounted in connection with one of said knobs for moving said spindle transversely thereof, tensionally controlled means mounted in connection with the other knob whereby said spindle may be locked against rotation, and means for moving said last named means so as to permit the rotation of said spindle.

2. In a lock mechanism of the class described, a door, plates mounted on the opposite sides thereof, knobs rotatably connected with said plates, a spindle movably mounted in said door and said knobs, one of said plate members being provided with a rectangular aperture, a spring controlled clutch mounted in connection with the knob corresponding with said plate member, means passed through the sleeve portion of said knob, said clutch member and said spindle for moving said clutch and spindle into different positions and for locking the same in one of said positions, and a lock mechanism mounted in the other of said knobs whereby the operation thereof will move said spindle transversely of the door.

3. In a lock mechanism of the class described, a door, plates mounted on the opposite sides thereof, knobs rotatably connected with said plates, a spindle movably mounted in said door and said knobs, means mounted in connection with one of said knobs for moving said spindle longitudinally, tensionally controlled means mounted in connection with the other knob whereby said spindle.

may be locked against rotation, and means passed through the shank portion of said last named knob and engaging said tensionally controlled means for moving the same so as to permit the rotation of said spindle.

4:. In a lock mechanism of the class described, a door, plates mounted on the opposite sides thereof, knobs rotatably connected with said plates, a spindle movably mounted in said door and said knobs, means mounted in connection with one of said knobs for moving said spindle longitudinally, tension ally controlled means mounted in connection with the other knob whereby said spindle may be locked against rotation, means passed through the shank portion of said last named knob and engaging said tensionally controlled means for moving the same so as to permit the rotation of said spindle, said tensionally controlled means being movable into position by the means passed through the shank portion of said knob to lock the spindle against rotation.

5. In a lock mechanism of the class described, a door, plates mounted on the opposite sides thereof, knobs rotatably connected with said plates, a spindle movably mounted in said door and said knobs, a lock mechanism mounted in one of said knobs, a dog operated by said lock mechanism to move the spindle transversely of said door, a sleeve mounted on said spindle within the shank portion of the other of said knobs, and means passed through said shank portion and secured in said sleeve and said spindle for moving said sleeve and spindle into diii'erent positions.

6. In a lock mechanism of the class described, a door, plates mounted on the opposite sides thereof, knobs rotatably connected with said plates, a spindle movably mounted in said door and said knobs, a lock mechanism mounted in one of said knobs, a dog operated by said lock mechanism to move the spindle transversely of said door, a tensionally controlled sleeve mounted in said spindle within the shank portion of the other of said knobs, said shank portion of the knob being provided with an elongated slot, a pin passed through said slot and secured in said sleeve and said spindle, and a cam nut mounted on the protruding end of said pin and operating in connection with a part of the shank portion of said knob for moving said sleeve into different positions.

7. In a lock mechanism of the class described, a door, plates mounted on the opposite sides thereof, knobs rotatably connected with said plates, one of said plates being provided with a central angular aperture, a spindle movably mounted in said door and knobs and passing through said angular aperture, a sleeve adjustably mounted on said spindle within the shank portion of the knob adjacent to the plate provided with the angular aperture and provided with a 'reduced angular portion which operates in connection with the angular aperture in said plate, means passed through the shank per-- tion of said knob for locking said sleeve, or my invention I have signed my name in the angular portion thereof, out of engage presence 4 of the subscribing Witnesses this 10 ment With the angular aperture in said plate, 12th day of June, 1916.

and tensional means for movin said sleeve or the angular portion thereof in engage- FRANK SOHALOW' ment with the angular aperture in said Witnesses: plate. C. EFMULREAMY, In testimony that I' claim the foregoing as N. E. THOMPSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents. Washington, D. C. 

